Question: Glentham is situated on the road that passes through what three English counties?

Context articles: 2015 County Championship Plate
A631 road
2016 Bill Beaumont Cup
County Championship Plate
2015 County Championship Shield
2016 County Championship Plate
2013 County Championship Plate
Glentham
2016 County Championship Shield
2014 County Championship Plate

The 2015 County Championship Plate, also known as Bill Beaumont Cup Division 2, was the 14th version of the annual English rugby union, County Championship organized by the RFU for the tier 2 English counties.
 Each county drew its players from rugby union clubs from the third tier and below of the English rugby union league system (typically National League 1, National League 2 South or National League 2 North).
 The counties were divided into two regional pools (north/south) with three teams in the north division and four in the south, with the winners of each pool meeting in the final held at Twickenham Stadium.
 New counties to the division included North Midlands and Northumberland who were demoted from the 2014 Bill Beaumont Cup while Surrey came up from the 2014 County Championship Shield having beaten Leicestershire the previous year in the Shield final having won the competition three years in a row.
The A631 is a road running from Sheffield, South Yorkshire to Louth, Lincolnshire in England.
 It passes through the counties of South Yorkshire, Nottinghamshire and Lincolnshire.
 The road has many towns on its route including Rotherham, Maltby, Gainsborough and Market Rasen.
 It is mostly single road throughout its length but has some stretches of dual carriageway as well.
 The road is approximately 65 mi long.
The 2016 Bill Beaumont Cup, also known as Bill Beaumont Cup Division One, was the 116th version of the annual, English rugby union, County Championship organized by the RFU for the top tier English counties.
 Each county drew its players from rugby union clubs from the third tier and below of the English rugby union league system (typically National League 1, National League 2 North or National League 2 South).
 The counties were divided into two regional pools with the winners of each meeting in the final held at Twickenham Stadium.
 New counties to the competition were the two finalists from the 2015 County Championship Plate – Surrey (winners) and Eastern Counties (runners-up) who replaced Kent and Durham who were relegated from their respective groups.
 Cornwall were the defending champions.
The County Championship Plate, also known as Bill Beaumont Division 2, is an annual rugby union competition in England between teams representing English counties.
 It was formed in 2002 as the County Championship Shield (a competition which is now played by tier 3 sides) - changing to its current name by 2010.
 The Plate is contested for by second tier teams in the RFU County Championship.
 The top eight counties are split into two regions of four teams, north and south, and play for the Bill Beaumont Cup.
 The same format is used for the Plate with each team playing one or two home games and the top teams in each group meeting in the final to be held at Twickenham Stadium along with other county divisional finals.
 There is also a system of promotion/relegation between this tier and top tier, with the two finalists moving to their respective regional groups in division one, where they replace the two bottom teams.
 Currently there is no relegation to tier 3 although in recent years Surrey have moved up after winning three Shield competitions in a row and Leicestershire moved up after winning the 2015 Shield final.
 From 2010 the County Championship Plate involves counties that are only able to select players from clubs at level five and below.
The 2015 County Championship Shield was the 11th version of the annual English rugby union County Championship, organized by the RFU for the tier 3 English counties.
 Each county drew its players from rugby union clubs from the fifth tier and below of the English rugby union league system.
 The counties were divided into three pools of four teams each, based roughly on regional lines, with the winner of each group plus the best runner-up going through to the semi-finals, with the winners of those games meeting in the final held at Twickenham Stadium.
 At the moment there is no promotion or relegation out of or into the County Championship Shield, although the 2014 champions Surrey moved up into tier 2, having won the competition three years in a row.
The 2016 County Championship Plate, also known as Bill Beaumont Cup Division 2, was the 15th version of the annual English rugby union, County Championship organised by the RFU for the tier 2 English counties.
 Each county drew its players from rugby union clubs from the third tier and below of the English rugby union league system (typically National League 1, National League 2 North or National League 2 South).
 The counties were divided into two regional pools (north/south) with four teams in each and the winners of each pool meet in the final to be held at Twickenham Stadium.
 New counties to the division included Kent and Durham County who were relegated from the 2015 Bill Beaumont Cup while Leicestershire were promoted as the winners of the 2015 County Championship Shield.
The 2013 County Championship Plate, also known as Bill Beaumont Cup Division 2, was the 12th version of the annual English rugby union, County Championship organized by the RFU for the tier 2 English counties.
 Each county drew its players from rugby union clubs from the third tier and below of the English rugby union league system (typically National League 1, National League 2 South or National League 2 North).
 The counties were divided into two regional pools (north/south) with three teams in the north division and three in the south, with the winners of each pool meeting in the final held at Twickenham Stadium.
 New teams to the division included Northumberland (north)) and North Midlands (south) who were relegated from the 2012 Bill Beaumont Cup.
Glentham is a village and civil parish in the West Lindsey district of Lincolnshire, England.
 It is situated on the A631, 6 mi west from Market Rasen, and 2 mi east from Caenby Corner and the A15.
 The village includes the hamlet of Caenby.
The 2016 County Championship Shield was the 12th version of the annual English rugby union County Championship, organised by the RFU for the tier 3 English counties.
 Each county drew its players from rugby union clubs from the fifth tier and below of the English rugby union league system.
 The counties were divided into three pools - one pool with four teams, the others with three teams each, with the winner of each group plus the best runner-up going through to the semi-finals, and the winners of those games meeting in the final held at Twickenham Stadium.
 Due to competition changes for the 2017 season (more on this below) a number of teams in the division would be promoted to tier 2 for the following season, joining the 2015 Shield champions Leicestershire who had already been promoted at the start of this season.
The 2014 County Championship Plate, also known as Bill Beaumont Cup Division 2, was the 13th version of the annual English rugby union, County Championship organized by the RFU for the tier 2 English counties.
 Each county drew its players from rugby union clubs from the third tier and below of the English rugby union league system (typically National League 1, National League 2 South or National League 2 North).
 The counties were divided into two regional pools (north/south) with three teams in the north division and three in the south, with the winners of each pool meeting in the final held at Twickenham Stadium.
 New teams to the division included Durham County and Kent who were relegated from the 2013 Bill Beaumont Cup.