How do I insert and retrieve geography data in asp.net mvc connected with Entity Framework and using dapper?

I'm new using geography data types and using dapper and I've been searching on the internet for a while but most of the answers aren't for geography type or are outdated. I'm working on a project using google's API to track dynamically but for now it's ok if it just shows various locations i introduce, Any help is appreciated.

Here's the model of my geography table, it's not complete but for now I just need to insert and retrieve data, also my latitude and longitude attributes are null so that I can introduce dynamically any data through a device

[Table("GEOGRAPHY")]
public partial class GEOGRAPHY
{
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
    public GEOGRAPHY()
    {
        DEV_GEO = new HashSet<DEV_GEO>();
        RECORDs = new HashSet<RECORD>();
    }

    [Key]
    public int ID_ROUTE { get; set; }

    public DbGeography LAT { get; set; }
    public DbGeography LONG { get; set; }

    [Required]
    [StringLength(2)]
    public string ISO { get; set; }

    [Required]
    [StringLength(80)]
    public string COUNTRY { get; set; }

    [Required]
    [StringLength(80)]
    public string NICENAME { get; set; }

    [StringLength(3)]
    public string ISO3 { get; set; }

    public short? NUMCODE { get; set; }
    public int PHONECODE { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<DEV_GEO> DEV_GEO { get; set; }

    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Usage", "CA2227:CollectionPropertiesShouldBeReadOnly")]
    public virtual ICollection<RECORD> RECORDs { get; set; }
}