จังหวัดเลย
ที่ตั้งและอาณาเขต
<mapframe latitude="17.455473" longitude="101.601563" zoom="5" width="396" height="235" align="center"> { "type": "FeatureCollection", "features": [ {     "type": "Feature", "properties": {}, "geometry": { "type": "Polygon", "coordinates": [ [           [              101.175842,              17.524892            ],            [              101.183395,              17.497389            ],            [              101.162109,              17.491495            ],            [              101.165543,              17.469228            ],            [              101.150436,              17.465953            ],            [              101.147003,              17.477087            ],            [              101.133957,              17.476432            ],            [              101.121597,              17.483637            ],            [              101.109924,              17.483637            ],            [              101.094131,              17.494115            ],            [              101.103058,              17.506557            ],            [              101.077652,              17.503283            ],            [              101.061859,              17.51507            ],            [              101.061172,              17.524892            ],            [              101.046753,              17.528821            ],            [              101.044693,              17.546498            ],            [              101.019287,              17.5537            ],            [              101.000748,              17.556973            ],            [              100.976715,              17.57203            ],            [              100.966415,              17.573994            ],            [              100.940323,              17.571375            ],            [              100.923843,              17.571375            ],            [              100.91629,              17.57923            ],            [              100.899811,              17.591012            ],            [              100.875092,              17.576612            ],            [              100.864105,              17.547808            ],            [              100.868912,              17.53144            ],            [              100.851746,              17.503283            ],            [              100.833206,              17.482982            ],            [              100.848999,              17.456128            ],            [              100.873032,              17.451542            ],            [              100.895691,              17.463988            ],            [              100.914917,              17.452197            ],            [              100.91835,              17.432545            ],            [              100.91423,              17.362435            ],            [              100.913544,              17.340807            ],            [              100.935516,              17.334253            ],            [              100.949936,              17.33753            ],            [              100.961609,              17.336219            ],            [              100.974655,              17.339496            ],            [              100.990448,              17.339496            ],            [              101.005554,              17.333597            ],            [              101.008987,              17.317865            ],            [              101.02272,              17.311966            ],            [              101.055679,              17.281153            ],            [              101.079712,              17.282464            ],            [              101.092758,              17.236563            ],            [              101.096191,              17.220823            ],            [              101.086578,              17.189995            ],            [              101.068726,              17.171627            ],            [              101.062546,              17.129636            ],            [              101.057053,              17.079102            ],            [              101.058426,              17.030525            ],            [              101.033707,              17.009515            ],            [              101.03096,              17.000979            ],            [              101.04744,              16.958949            ],            [              101.026154,              16.941872            ],            [              101.04538,              16.927421            ],            [              101.065292,              16.926764            ],            [              101.073532,              16.915596            ],            [              101.069412,              16.9018            ],            [              101.103745,              16.898515            ],            [              101.104431,              16.911654            ],            [              101.107864,              16.922165            ],            [              101.126404,              16.928734            ],            [              101.122971,              16.958292            ],            [              101.125031,              16.977338            ],            [              101.13121,              16.995725            ],            [              101.122284,              17.01805            ],            [              101.127777,              17.035777            ],            [              101.14151,              17.038403            ],            [              101.159363,              17.03906            ],            [              101.191635,              17.079759            ],            [              101.190948,              17.109949            ],            [              101.221848,              17.120449            ],            [              101.265793,              17.088948            ],            [              101.306992,              17.117824            ],            [              101.327591,              17.142759            ],            [              101.365356,              17.173595            ],            [              101.385956,              17.170315            ],            [              101.399002,              17.176219            ],            [              101.433334,              17.159162            ],            [              101.451187,              17.144071            ],            [              101.45668,              17.110605            ],            [              101.459427,              17.094198            ],            [              101.475906,              17.081728            ],            [              101.487579,              17.0686            ],            [              101.499252,              17.067944            ],            [              101.514359,              17.055472            ],            [              101.530151,              17.056128            ],            [              101.536331,              17.042999            ],            [              101.531525,              17.031182            ],            [              101.541824,              17.000979            ],            [              101.56311,              16.993755            ],            [              101.591263,              16.999009            ],            [              101.604996,              17.008858            ],            [              101.624908,              17.041686            ],            [              101.645508,              17.040373            ],            [              101.649628,              17.016081            ],            [              101.664734,              16.991785            ],            [              101.675034,              16.974054            ],            [              101.67572,              16.951724            ],            [              101.691513,              16.942529            ],            [              101.686707,              16.922822            ],            [              101.686707,              16.894573            ],            [              101.682587,              16.873547            ],            [              101.685333,              16.849234            ],            [              101.699066,              16.832147            ],            [              101.712799,              16.819002            ],            [              101.721725,              16.79994            ],            [              101.69838,              16.807828            ],            [              101.688766,              16.79994            ],            [              101.707306,              16.779561            ],            [              101.727905,              16.753263            ],            [              101.761551,              16.757865            ],            [              101.79039,              16.768385            ],            [              101.820602,              16.776274            ],            [              101.846008,              16.788765            ],            [              101.872101,              16.796653            ],            [              101.883774,              16.811114            ],            [              101.925659,              16.830175            ],            [              101.948318,              16.839376            ],            [              101.944885,              16.850548            ],            [              101.957932,              16.849234            ],            [              101.970978,              16.845291            ],            [              101.982651,              16.843976            ],            [              101.997757,              16.843319            ],            [              102.00737,              16.856463            ],            [              102.010803,              16.869605            ],            [              102.029343,              16.865005            ],            [              102.046509,              16.863034            ],            [              102.061615,              16.87289            ],            [              102.063675,              16.888003            ],            [              102.065735,              16.897858            ],            [              102.032089,              16.951067            ],            [              102.080841,              16.977338            ],            [              102.1138,              17.006888            ],            [              102.154312,              17.019364            ],            [              102.133713,              17.036434            ],            [              102.111053,              17.058097            ],            [              102.106247,              17.078446            ],            [              102.073975,              17.109949            ],            [              102.025223,              17.124386            ],            [              101.983337,              17.144727            ],            [              101.949005,              17.180155            ],            [              101.946945,              17.211641            ],            [              101.982651,              17.250335            ],            [              101.982651,              17.279186            ],            [              102.023849,              17.322454            ],            [              102.019043,              17.346051            ],            [              102.01973,              17.374887            ],            [              101.984711,              17.413546            ],            [              101.990204,              17.452197            ],            [              102.070541,              17.450232            ],            [              102.128906,              17.486256            ],            [              102.136459,              17.506557            ],            [              102.144699,              17.517689            ],            [              102.089081,              17.625699            ],            [              102.078094,              17.685241            ],            [              102.065735,              17.692437            ],            [              102.053375,              17.652528            ],            [              102.043076,              17.66038            ],            [              102.024536,              17.733645            ],            [              102.031403,              17.775497            ],            [              102.048569,              17.785305            ],            [              102.040329,              17.802304            ],            [              102.052689,              17.827799            ],            [              102.052002,              17.868975            ],            [              102.038269,              17.884006            ],            [              102.020416,              17.984611            ],            [              102.038956,              17.987223            ],            [              102.038269,              18.019222            ],            [              102.054749,              18.044686            ],            [              102.060928,              18.096255            ],            [              102.073288,              18.145199            ],            [              102.091141,              18.160859            ],            [              102.106247,              18.173907            ],            [              102.104187,              18.215003            ],            [              102.083588,              18.220873            ],            [              102.059555,              18.206523            ],            [              102.045135,              18.198696            ],            [              102.034836,              18.158249            ],            [              102.01149,              18.147157            ],            [              101.99501,              18.120403            ],            [              101.973724,              18.113877            ],            [              101.918106,              18.051867            ],            [              101.910553,              18.036198            ],            [              101.876907,              18.02771            ],            [              101.852875,              18.04338            ],            [              101.811676,              18.062312            ],            [              101.785583,              18.066882            ],            [              101.771164,              18.056437            ],            [              101.754684,              18.029016            ],            [              101.749878,              17.998979            ],            [              101.738892,              17.973508            ],            [              101.729965,              17.946727            ],            [              101.729965,              17.929089            ],            [              101.710739,              17.904915            ],            [              101.6922,              17.913409            ],            [              101.614609,              17.889233            ],            [              101.594696,              17.846754            ],            [              101.57753,              17.865708            ],            [              101.56929,              17.856558            ],            [              101.551437,              17.820608            ],            [              101.554184,              17.810802            ],            [              101.56929,              17.802304            ],            [              101.576157,              17.786612            ],            [              101.548004,              17.789882            ],            [              101.541824,              17.77942            ],            [              101.521912,              17.775497            ],            [              101.497879,              17.755226            ],            [              101.491699,              17.726451            ],            [              101.484833,              17.738223            ],            [              101.47728,              17.750649            ],            [              101.482086,              17.762419            ],            [              101.46286,              17.753264            ],            [              101.458054,              17.744109            ],            [              101.445007,              17.728413            ],            [              101.420975,              17.734299            ],            [              101.400375,              17.735607            ],            [              101.414108,              17.725142            ],            [              101.431274,              17.717948            ],            [              101.414108,              17.70879            ],            [              101.405182,              17.701595            ],            [              101.400375,              17.683278            ],            [              101.383896,              17.69767            ],            [              101.379776,              17.682624            ],            [              101.361237,              17.68197            ],            [              101.345444,              17.657763            ],            [              101.315231,              17.651874            ],            [              101.304932,              17.650565            ],            [              101.311111,              17.636824            ],            [              101.293259,              17.63028            ],            [              101.278839,              17.610647            ],            [              101.26236,              17.603448            ],            [              101.252747,              17.577267            ],            [              101.242447,              17.551736            ],            [              101.232147,              17.555009            ],            [              101.226654,              17.530785            ],            [              101.195755,              17.53144            ],            [              101.175842,              17.524892            ]          ]        ]      }    }  ] } จังหวัดเลย ตั้งอยู่ในภาคตะวันออกเฉียงเหนือตอนบน บนพื้นที่ราบสูงโคราช หรือที่เรียกกันว่า แอ่งสกลนคร มีเนื้อที่ประมาณ 11,424 ตารางกิโลเมตร หรือ ประมาณ 7,140,382 ไร่ หรือประมาณร้อยละ 6.77 ของพื้นที่ในภาคตะวันออกเฉียงเหนือ มีลักษณะภูมิประเทศส่วนใหญ่เป็นทิวเขาในแนวทางทิศเหนือใต้ และจะมีพื้นที่ราบลุ่มระหว่างหุบเขาที่ไม่ใหญ่มากนัก สลับกันอยู่ในแนวเทือกเขา มีภูเขาสูงกระจัดกระจาย โดยเฉพาะทางตะวันตกและทางด้านใต้ของจังหวัด มีแหล่งน้ำสำคัญคือ แม่น้ำเลยที่ไหลผ่านตัวจังหวัด และแม่น้ำโขงในบริเวณตอนบนของจังหวัด มีระยะทางห่างจากกรุงเทพมหานคร ประมาณ 520 กม. มีอาณาเขตติดต่อกับจังหวัดอื่น ๆ ในแต่ละทิศดังนี้