With the 2015 NFL draft looming on April 30, the Vikings have been busy doing their homework on draft prospects. Here is a list of their interactions, reported by us or others, with certain prospects. Note that this is far from a complete list, as there are surely meetings the Vikings have kept quiet.

Quarterback:

Devin Gardner, QB/WR, Michigan: East West Shrine Game meeting

Running back:

Jay Ajayi, RB, Boise State: Pro day meeting

David Cobb, RB, Minnesota: NFL combine meeting

David Johnson, RB, Northern Iowa: Winter Park visit

Zach Zenner, RB, South Dakota State: East West Shrine Game meeting

Wide receiver:

Sammie Coates, WR, Auburn: NFL combine meeting

Stefon Diggs, WR, Maryland: Pro day meeting

Dorial Green-Beckham, WR, Missouri: Winter Park visit

Tyler Lockett, WR, Kansas State: Senior Bowl meeting

Devante Parker, WR, Louisville: NFL combine meeting

Devin Smith, WR, Ohio State: NFL combine meeting

Tight end:

Gerald Christian, TE, Louisville: NFL combine meeting

Richard Ross, TE, Old Dominion: Pro day meeting and private workout

Maxx Williams, TE, Minnesota: Winter Park visit

Offensive line:

Jamon Brown, OT, Louisville: East West Shrine Game meeting

T.J. Clemmings, OT, Pittsburgh: Winter Park visit

Shaq Mason, G, Georgia Tech: Senior Bowl meeting

A.J. Cann, G, South Carolina: Winter Park visit

Terry Poole, OT, San Diego State: East West Shrine Game meeting

Defensive line:

Vic Beasley, DE, Clemson: NFL combine meeting

Bud Dupree, DE, Kentucky: NFL combine meeting and pro day meeting

Dante Fowler, DE, Florida: NFL combine meeting

Randy Gregory, DE, Nebraska: Pro day meeting, Winter Park visit

Marcus Hardison, DT, Arizona State: Pro day meeting and Winter Park visit

Preston Smith, DE, Mississippi State: Winter Park visit

Za'Darius Smith, DE, Kentucky: East West Shrine Game meeting

Lynden Trail, DE, Norfolk State: Winter Park visit

Linebacker:

Stephone Anthony, MLB, Clemson: Pro day meeting

Paul Dawson, MLB, TCU: Winter Park visit

Benardrick McKinney, MLB, Mississippi State: NFL combine meeting, Winter Park visit

Denzel Perryman, MLB, Miami: NFL combine meeting

Shaq Thompson, OLB, Washington: NFL combine meeting and Winter Park visit

Defensive back:

Jalen Collins, CB, LSU: Winter Park visit

Quandre Diggs, CB, Texas: NFL combine meeting

Anthony Harris, S, Virginia: Winter Park visit

Byron Jones, CB, Connecticut: Pro day meeting

Marcus Peters, CB, Washington: Winter Park visit

Damarious Randall, S, Arizona State: Winter Park visit

Josh Shaw, CB, USC: East West Shrine Game meeting

Cedric Thompson, S, Minnesota: Winter Park visit

Trae Waynes, CB, Michigan State: Winter Park visit